Demojify used by panvimdoc to strip emojis is outdated, it doesn't include any codepoints since Unicode 12. So Hook emoji ended up in the vimdoc since it was included in Unicode 13. Switching to an older emoji is good enough a workaround for now.
Also bumped panvimdoc version.
vimdoc should update on every commit to `main`. This way the "Last change" info in vimdoc actually shows when the code was last changed even if the source file for help didn't change.
Other notable changes:
- Made README.md panvimdoc compatible
- Got rid of `<details>` and `<summary>` tags in installation instructions
- Made title, description and badges markdown only features (not included in vimdoc)
- Tweaked README.md appearance
- Raised all heading levels by one
- Updated description
- Added license badge
- Removed customisations from badges
- Left style as For the Badge though
- Added initial vimdoc, locally generated with panvimdoc
Closes#10.
